/*
 * Copyright 2006-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package asphalt2.util
{
	import mx.containers.Canvas;
	import mx.core.Application;
	import mx.managers.ISystemManager;
	import mx.managers.PopUpManager;
	/**
	 * 透明なモーダルクラス
	 * @author c9katayama
	 **/
	public class TransparentModal
	{
		private static var modalList:Array = [];
		
		public static function show():void{
			var sm:ISystemManager = Application(Application.application).systemManager;
			var modal:Canvas = new Canvas();
			modal.alpha=0;
			modal.setStyle("modalTransparencyColor",0xFFFFFF);
			modal.setStyle("modalTransparency",0);
			modal.setStyle("modalTransparencyDuration",0);
			modal.setStyle("modalTransparencyBlur",0);			
			PopUpManager.addPopUp(modal, Application(Application.application),true);
			modalList.push(modal);
		}
		public static function hide():void{
			if(modalList.length > 0){
				PopUpManager.removePopUp(Canvas(modalList.pop()));
			}
		}
		public static function hideAll():void{
			while(true){
				var c:Canvas = Canvas(modalList.pop());
				if(c == null){
					return;
				} 
				PopUpManager.removePopUp(c);
			}
		}
	}
}